449 citations · 819 across the 4 of their papers we have counts for
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cond-mat.str-el2011★ 652 cited
Fractional quantum Hall effect in the absence of Landau levels
D. N. Sheng, Zheng-Cheng Gu, Kai Sun +1
It has been well-known that topological phenomena with fractional excitations, i.e., the fractional quantum Hall effect (FQHE) \cite{Tsui1982} will emerge when electrons move in La…
cond-mat.str-el2010★ 954 cited
Nearly-flat bands with nontrivial topology
Kai Sun, Zheng-Cheng Gu, Hosho Katsura +1
We report the theoretical discovery of a large class of 2D tight-binding models containing nearly-flat bands with nonzero Chern numbers. In contrast with previous studies, where no…